"Jennifer and Marc couldn't see eye-to-eye on the subject," the anonymous source says. "She's always been more into the church than him." The two reportedly rowed over their twins Max and Emme. J-Lo wanted to send the kids to a Scientology school, while Marc Anthony "wasn't a huge fan and it caused problems."

While being close friends with celebrity Scientologists Tom Cruise and Katie Holmes, Jennifer Lopez denied being one herself in 2007. A year later in 2008 she opened up to the Daily Beast about her father being a Scientologist for more than 20 years, and about wanting to send her kids to Scientology school: "I wouldn't mind. Not at all. Because I know that the technologies that they have are very helpful..."

"Sometimes it doesn't work -- and that's sad," Jennifer Lopez has recently told Vanity Fair, opening up about the breakup. Her words have taken on a new and specific meaning, with this latest rumor, since the controversial organization has been criticized for encouraging its members to distance themselves from non-believers. "Sometimes we don't realize that we are compromising ourselves. To understand that a person is not good for you, or that that person is not treating you in the right way, or that he is not doing the right thing for himself -- if I stay, then I am not doing the right thing for me."